Chessy
Semi-Slav Defense: Complete Guide
The most theoretically demanding Queen's Gambit system — Black plays both c6 and e6, blending Slav solidity with Queen's Gambit Declined flexibility. Drill every main line against an adaptive engine, backed by real Lichess win rates and Stockfish evaluations.
Play the main line: Semi-Slav Defense: Accelerated Move Order
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Create a free account →All 14 variations of the Semi-Slav Defense
Openings & Plans
Semi-Slav Defense: Accelerated Move Order
ECO D31
4M games
Openings & Plans
Semi-Slav Defense
ECO D43
2M games
Openings & Plans
Semi-Slav Defense: Accelerated Move Order: e3
ECO D31
1M games
Openings & Plans
Semi-Slav Defense: Accelerated Move Order: cxd5
ECO D31
520K games
Openings & Plans
Semi-Slav Defense: Bg5
ECO D43
411K games
Openings & Plans
Semi-Slav Defense: e3
ECO D43
391K games
Openings & Plans
Semi-Slav Defense: Accelerated Move Order: Nf3
ECO D31
338K games
Openings & Plans
Semi-Slav Defense: cxd5
ECO D43
307K games
Openings & Plans
Semi-Slav Defense: Accelerated Move Order: e4
ECO D31
112K games
Openings & Plans
Semi-Slav Defense: Accelerated Move Order: Bf4
ECO D31
76K games
Openings & Plans
Semi-Slav Defense: Accelerated Move Order: a3
ECO D31
51K games
Openings & Plans
Semi-Slav Defense: Bf4
ECO D43
37K games
Openings & Plans
Semi-Slav Defense: a3
ECO D43
19K games
Openings & Plans
Semi-Slav Defense: g3
ECO D43
10K games
Frequently asked questions about the Semi-Slav Defense
What is the semi-slav in chess?
The Semi-Slav is a chess opening family with 14 variations covered on Chessy. Over 10 million Lichess games have reached these positions across all rating levels.